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340 MW Natural Gas operating in Wayne, MI
340 MW
Nameplate Capacity
4
Generators
units
Natural Gas Fired Combustion Turbine
Technology
2002
Operating Since
Coordinates
42.1670, -83.5318
County
Wayne, MI
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Wolverine Power Supply Coop | — | — |
| Owner(s) | Wolverine Power Supply Coop | — | — |
| Status | Operating | — | — |
The Sumpter power plant, located in Wayne County, Michigan, is a 340 MW natural gas-fired facility consisting of four combustion turbine generators. It began operating in 2002 and is owned and operated by Wolverine Power Supply Cooperative. The plant operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the RFC NERC region.
Sumpter's latest annual generation was 190,146 MWh, resulting in a capacity factor of 6.3%. According to available data, the plant's installed cost was $438.79 per kW, based on FERC filings. Sumpter is ranked as the 15th largest power plant in Michigan out of 25, and 609th nationally out of 945 plants.
Generated from EIA, GEM, and public data sources
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
RFC
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
120.0 kV
Regulatory Status
RE — Regulated
Entity Type
Cooperative
Sector
Electric Utility
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
2.1K MWh
Latest Month
190.1K MWh
Annual Generation
6.3%
Capacity Factor
Forward-looking generation outlook with probabilistic ranges across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.
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CO₂ Intensity
1533 lb/MWh
NOx
0.393 lb/MWh
SO₂
0.008 lb/MWh
CH₄
0.029 lb/MWh
N₂O
0.003 lb/MWh
Capacity Factor
3.8%
Annual Net Gen
112 GWh
CO₂eq
1534 lb/MWh
Subregion
RFC Michigan
Gas turbine · Wolverine Power Supply Cooperative, Inc. · Data from 2015–2024
$418/kW
Installed Cost
$3/kW
Annual CapEx
$53.1/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
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Point of Interconnection
Nearest Substation
Sumpter Generating Facility Substation · 120 kV
Substation Distance
< 10 km
Operator
Wolverine Power Cooperative
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
DECO.JUDD11
Pricing Hub
MICHIGAN.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
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